Book binder or lock.



J. VAN DER WBL.

BOOK BINDER 0R LOOK.

APPLICATION FILED MAILQ, 1912.

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UNITED STATES PATENT OFFICE.

JOHN VAN DER WEL, OF SEATTLE, WASHINGTON.

BOOK BINDER OR LOCK.

To all whom it may concern:

Be it known that I, JOHN VAN DER VVEL, a citizen of the United States ofAmerica, residing at Seattle, in the county of King and State ofWV-ashington, have invented new and useful Improvements in Book Bindersor Locks, of which the following is a specification.

This invention relates to improvements in looks or binders and hasparticular application to devices of this character for look ing books,letters, and the like to prevent the removal or addition of sheets.

In carrying out the present invention, it is my purpose to provide alock or binding device of this class which will include a fixed jaw anda movable jaw designed to embrace one edge of the book or other articleto be locked, means being provided to actuate the movable jaw tocooperate with the fixed jaw to produce a clamping action upon the bookand lock the same in closed position, a locking device being operablefrom the said means to lock the jaws against movement.

Furthermore, I aim to provide a lock or binder of this character whichwill embody the desired features of simplicity, efficiency anddurability coupled with. cheapness of cost in manufacture.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts here inafter setforth in and falling within the scope of the appended claims.

In the accompanying drawing forming a part of this specification therehas been illustrated one practical embodiment of the invention and inthis drawing;

Figure 1 is a side elevation of a lock con-' structed in accordance withthe present invention, the same being applied to a book. Fig. 2 is afront elevation of the lock, the locking device being shown in unlockedposition. Fig. 3 is a view similar to Fig. 2 showing the locking devicein locked position. Fig. 4 is a fragmentary enlarged transversesectional view on the line t4 of Fig. 2, and Fig. 5 is a detail view ofa key for the lock.

Similar reference characters designate like parts throughout the severalviews.

Referring now to the accompanying drawing in detail, my improved look asshown includes a casing 1 constructed of metal or any other suitable orpreferred material and provided with a rear Wa l 2 and top and bottomSpecification of Letters Patent.

Application filed March 9, 1912.

Patented June 10, 1913.

Serial No. 682,572.

walls 3 and 4 respectively extending at right angles to the rear walland in parallelism with each other. The lower wall 4 at its outer freeend is provided with a covering 5 of felt, rubber or the like and isdesigned to form the stationary jaw of the look, while the upper wall 3of such lock forms a handle by means of which the lock may be applied toa book with ease and convenience.

Depending from the junction of the upper wall 3 with the rear wall 2 ateach side of the casing is an ear 6, and rotatably and slidably mountedin these ears is an actuating shaft 7 extending beyond both sides of thecasing and equipped at one end with an operating disk 8 whereby theshaft may be rotated in its bearings. This shaft 7, within the casing isprovided with worm threads 9 and 10 spaced appropriate distances fromeach other and designed to engage worm gears 11, 11 carried upon theproximate ends of worm shafts 12, 12 arranged forwardly of the shaft 7and journaled in the upper and lower walls 2 and 3 of the casing so thatin the movement of the shaft 7, motion may be transmitted to the wormshafts 12, 12 through the medium of the worm threads 9 and 10, and theworm gears 11, 11. The numeral 13 designates the movable jaw providedwith spaced internally threaded collars 14:, 14: designed to receive theshafts 12, 12 whereby in the movement of the latter the movable jaw 13may be moved toward and away from the fixed jaw 4, dependent upon thedirection of rotation of the shaft 7, as will be readily understood, theunder surface of the jaw 13 being provided with suitable yieldablcmaterial 15 such as felt, rubber or the like to prevent marring of thebook in the application ofthe lock thereto. It will thus be seen that abook may be inserted between the jaws 4 and 13, when the latter areseparated, and the movable jaw moved toward the fixed jaw to produce aclamping action upon the book between such jaws to lock the same againstaccess, such movement being imparted to the movable jaw by means of theworm shafts 12, gears 11 and shaft 7, the latter rotating in itsbearings to turn the worm shafts.

In order to lock the movable jaw in engagement with the book and toproduce such action automatically, I employ a locking device which inthe present instance includes a segment 16 fixed upon a shaft 17 whichfinds a bearing at its end 18 in the rear wall 2 of the casing, whileits opposite end 19 is journaled in a plate 20 of right angular outlineand having its opposite extremities riveted or otherwise suitablysecured to the rear wall 2 and the upper wall 3, which form therewith ahousing or casing for the locking device. The segment 16 is heldnormally in an inoperative position by means of a leaf spring 21 havingone limb secured to a stop pin 22 arranged upon one side of the segment16 and having its opposite limb connected to the segment 16 and actingthereon to hold the same in engagement with the stop pin 22 and in aninactive or unlocked position. The peripheral edge of the segment 16 isformed with teeth 23 adapted to be engaged by the worm threads 9 uponthe shaft 7 so that the segment 16 may be turned or rotated against theaction of the spring 21 to lock the shaft 7 against rotation. Toaccomplish this result, the shaft 7 is capable of sliding within itsbearings, as before said, so that when the jaws 13 and 4 have beenclamped upon the book and the worm shafts 12 rendered immovable owing tosuch clamping action, the shaft 7 may travel longitudinally of thecasing owing to the worm gears 11, 11 on the shafts 12, 12 beingstationary in the continued turning movement of the worm threads 9 and10 on the actuating shaft. Previous to the actuating shaft 7 reachingthe end of its path of sliding movement, the worm thread 9 thereonengages the teeth 23 in the segment 16 so that rotation of the actuatingshaft moves the segment to locking position as shown in Fig. 3.Encircling the shaft 7 intermediate the worm thread 10 and the adjacentear 6 on the casing is a coiled expansion spring 24 designed to preventpremature sliding movement of the actuating shaft and adapted to holdthe threads 9 thereon out of engagement with the teeth of the segment 16until a certain pressure has been brought to bear upon the book betweenthe jaws 13 and 4.

Fixed to the shaft 17 adjacent the segment 16 thereon, in parallelrelation therewith is an arm 25 equipped at its free end with a rightangularly extending lug 26 adapted to engage a recess 27 formed in aspring member 28 which spring member is bolted or'otherwise fastened tothe plate 20 of the housing of the locking device, the lug 26 on the arm25 being designed to enter the groove 27 in the spring member 28 whenthe segment 16 has been thrown to locking position so as to prevent thereturn of the segment to an unlocked orinactive position until the lug26 is disengaged from said groove. Fixed to the side walls of thehousing of the locking device upon the side of the arm 25 opposite fromthe spring member 28, is a guide plate 29 provided with a cut outportion 30 through which is passed a key post 31 fixed at one end to theall 20 of the housing and terminating at its opposite end short of therear wall 2 of the casing 1 and in alinement with a key hole slot 32adapted to receive the hollow shank 33 of a key 34 provided wit-h a lug35 adapted to enter the space between the guide plate 29 and the springmember 28 so that in the turning movement of the key, the spring member28 may be forced against the wall 20 of the housing of the lockingdevice to disengage the groove 27 thereof from the lug 26 on the arm Inthis position of the spring member 28, the actuating shaft is rotatedand slides longitudinally within its bearings under the action of thespring 24:. The segment 16 is then moved toward the inactive position,and is finally disengaged from the worm 9 as in Fig. 2, and the spring21 acts to hold such segment inactive,

while the direction of rotation of the actuating shaft is reversed, theworm wheels 11, 11 and the shafts 12, 12 being turned in the reversemovement of the actuating shaft to relieve the book of the clampingaction of the jaws. If desired, the lug 35 of the key 34 may be formedwith a depression or projection and the guide plate 29 formed with asimilar depression or projection so that the device may be unlocked onlyby a special form of key.

In practice, the jaws 4 and 13 are positioned upon the opposite sides ofthe book, as shown in Fig. 1, and the shaft 7 revolved by means of theoperating disk 8 to impart movement to the aw 13 through the medium ofthe worm gears 11 and their respective shafts 12. Upon a certainclamping action being produced upon the book, which action is dependentupon the tension of the spring 24, the said spring will yield to permitthe shaft 7 to slide longitudinally of its bearings whereby the Wormthreads 9 thereon will engage the teeth 23 in the segment 16 to throwthe latter to a locking position, as previously described, whereby thelug 26 of the arm 25 will engage the recess 27 in the spring member 28to lock the parts in position. To unlock the device, the key is insertedthrough the key hole slot 32 and positioned upon the post 31 and the lug35 of such key is disposed between the guide plate 29 and the springmember 28 so that in the turning of the key, the spring member may beforced out of engagement with the lug on the arm 25 to permit thelocking device to be returned to an unlocked or inactive position asaforesaid so that the jaws 13 and 4 may be separated by turning theshaft 7' in a re verse direction.

From the foregoing description taken in connection with the accompanyingdrawing, the construction and operation of my invention will be readilyapparent and while I have shown and described one form of my inventionby way of illustration, I desire to have understood that I do not limitmyself to the exact details of construction herein shown and described,as modification and variation may be made within the scope of the claimsand without departing from the spirit of the invention.

I claim:

1. In a. device of the class described, a fixed aw, a. movable jaw,means for actuating said movable jaw toward said fixed jaw to produce a.clamping action, an actuating member for said means, and a. lockingdevice operable from said member subsequent to the initial movement ofsaid jaw to produce a clamping action.

2. In a device of the class described, a fixed jaw, a movable aw, meansfor actuating said movable jaw toward said fixed jaw to produce aclamping action, an actuating member for said means, a locking deviceoperable from said member subsequent to the initial movement of said jawto produce a clamping action, and means for releasing said lockingdevice.

3. In a device of the class described, a fixed jaw, a movable jaw, meansfor actuating said movable jaw toward said fixed jaw to produce aclamping action, an actuating member for said means and movabletherefrom subsequent to the initial movement of said movable jaw toproduce the clamping action, and a locking device operable from saidmember in the movement thereof subsequent to the initial movement of themovable jaw.

4. In a device of the class described, a fixed aw, a movable jaw, meansfor aetuat ing said mo able jaw to produce a clamping action, anactuating member for said means and 1m able therefrom subsequent to theinitial movement of said movable memher to produce a clamping action, alocking device operable from said member in the further movementthereof, and means for releasing said locking device.

5. In a device of the class described, a fixed jaw, a movable jaw, meansfor actuating said movable jaw to produce a clamping action, anactuating member for said means and movable therefrom subsequent to theinitial movement of said movable member to produce a clamping action, alocking device operable from said member in the further movementthereof, and key operated means for releasing said locking device.

t3. In a device of the class described, a fixed jaw, a movable jawadapted to cooperate with the fixed jaw to produce a clamping action,means for actuating said movable jaw, an actuating member for said meansand movable therefrom subsequent to the movement of the movable jaw toproduce the clamping action, means for holding said actuating memberagainst receding movel'nent previous to producing the clamping action,and a locking device operable from said member in the subsequentmovement thereof.

7. In a device of the class described, a fixed jaw, a movable jaw, wormshafts for actuating said movable jaw, an actuating shaft for said wormshafts, connections between said actuating shaft and worm shafts, and alocking device operable from said actuating shaft subsequent to theinitial movement of said movable jaw.

In testimony whereof I. aflix my signature in presence of two witnesses.

JOHN VAN DER \VEL.

\Vitnesses Mnnciinn'r VAN DER \VEL. LAMBERT Voss.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

